Alina Novinskaya is now a housewife, wife of Mark Vorontsov and stepmother of little Antoshka. She does not regret the ruined career of an investigator, because she adores her husband and stepson. Mark and Antoshka love her. But one day, on a business trip, Mark meets a woman named Nadya, who is like two peas in a pod similar to his missing wife Mariya.